JPH01278162A - Isdn terminal equipment - Google Patents

Abstract

PURPOSE:To enable a various kinds of services such as a private service, etc., to be received by providing the generation part of an in-band tone including a DTMF(Dual Tone Multi Frequency) and a control part for the generation part of the in-band tone in a terminal adapter. CONSTITUTION:The title device is constituted of an ISDN(Integrated Service Digita Network) terminal 10, an ISDN network 20, and a private service facility 30, and a service can be received by calling the private service facility 30 from the ISDN terminal equipment 10 via the ISDN network 20. Here, the ISDN terminal equipment 10 is provided with a tone generation part 12e to send the in-band tone such as a DTMF tone, etc., to a network side and a generation control part 12d to control the part 12e in the terminal adapter 12. Thereby, it is possible to receive a various kinds of services such as the private service, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a computer with a terminal adapter used in an integrated services digital network.

(Prior Technology) Integrated Service Digital Network (ISDN: In
tegr-ated 5 services Digit
al Network), a personal computer equipped with a terminal adapter adapted to the digital subscriber line interface of the subscriber exchange is connected as a terminal device.

The procedure for accessing the public network using a conventional ISDN terminal device will be explained with reference to FIG. When the receiver is removed, it is connected to the ISDN switch interface section 12a in the terminal adapter 12.
Transfer to.

(ii) The ISDN exchange inter-interface unit 12a converts the selected numeric information into an ISDN exchange interface protocol and connects the ISDN through the digital subscriber line 22.
It is transferred to the ISDN exchange 21 within the network 20.

(iii) The ISDN exchange 15 in the ISDNy 420 uses the I/O in the ISDN terminal device 10 of the originating party so that the originating party can hear a ringback tone, busy tone, or order tone depending on the situation of the called party.
It instructs the SDN exchange interface section 12a to generate necessary tones. Upon receiving this command, the ISDN exchange interface section 12a activates the tone generation section 12c via the tone generation control section 12b to generate a necessary tone, and allows the user to listen to the tone through the terminal handset 14.

(iv) If the called party is free, a call is made, and when the called party answers, the public network becomes cut-through, and the calling party and the called party are in a conversation state.

(v) The called party is a private service facility 3
If it is 0, the announcement device 31 provides an explanation of the service content when the call arrives, and instructs the calling party to input the timing items.

[The user of the SDN terminal device 10 on the calling side listens to the announcement from the handset 14 and inputs the timing items from the keyboard 13;
DTMF (Dual ToneMulti Fre
Since there is no sending function for qency), the sending of the delay item is not performed.

(Problem to be Solved by the Invention) In the conventional ISDN terminal device described above, the terminal adapter does not have a function to generate in-band tones such as DTMF, so even if the called party of the private service facility is called, the private service cannot be used. The disadvantage is that it cannot be accepted.

(Means for Solving the Problems) The ISDN terminal device of the present invention includes a terminal adapter that includes an in-band tone generation unit including DTMF and a control unit for the in-band tone generation unit, and provides in-band services such as private services. It is configured to enable the enjoyment of various services using tones.

Hereinafter, the operation of the present invention will be explained in detail together with examples.

(Embodiment) FIG. 1 is a block diagram showing the configuration of an ISDN terminal device according to an embodiment of the present invention together with a receiving terminal device of an ISDN network and a private service facility.
The SDN terminal device, 20 is an ISDN network, and 30 is a private service facility.

The procedure for calling the private service facility 30 from the ISDN terminal device 10 via the ISDN network 20 to receive a service will be described.

(i) The operation is the same as that already explained in the section of the prior art up to the point where the ISDN 420 becomes cut-through and a two-party conversation is established between the ISDN terminal device 10 on the calling side and the private service facility 30 on the called side.

(ii) When a call arrives at the private service facility 30, the announcement device 31 explains the service content and instructs the caller to input the timing items.

(iii) The caller listens to the announcement using the handset 14 and inputs the make-up item using the keyboard 13.

(iv) The personal computer 11 of the I5DNi terminal 10 drives the DTMF tone generation unit 128 via the DTMF tone generation control unit 12d to generate a DTMF signal corresponding to the make-up item.

(V) The generated DTMF signal (in-band tone) is transferred to the private service facility 30 through the ISDNy 420 and the DTMF tone receiver 32
will be received.

(vi) In accordance with the timing items received by the DTMF tone receiver 32, the general-purpose computer interface unit 33
An inquiry is made to general purpose computer 34 via .

(vi) The inquiry result (data) is sent to the announcement device 3.
1, it is communicated to the caller.

(Effects of the Invention) As described above in detail, the ISDN terminal device of the present invention includes a tone generation unit for sending in-band tones such as DTMF tones toward the network side, and a generation control unit for controlling the tone generation unit. Since the Terminal Adapter is equipped with a Terminal Adapter and a Terminal Adapter, it has the effect of making it possible to enjoy various services such as access to private services.

[Brief explanation of the drawing]

FIG. 1 shows an I
A block diagram showing the configuration of the SDN network, Figure 2 is a conventional IS
It is a block diagram showing the configuration of ISDN''!r4 including a DN terminal device. 10... ISDN terminal device, 11... Personal computer, 12... Terminal adapter, 12a.
... ISDN exchange interface section, 12b... tone generation control section, 12C... tone generation section, 12d.
... In-band tone generation control section, 12e... In-band tone generation section, 13... Keyboard, 14...
Handset, 20...ISDN network, 21...IS
DN intercom, 22. Digital subscriber line, 30. Private service facility, 31. Announcement device, 32. DTMF receiver, 34.
...General-purpose computer.

Claims (1)

[Scope of Claims] An ISDN terminal device comprising a computer and a terminal adapter adapted to a digital subscriber line interface of a subscriber exchange in an ISDN network, wherein the terminal adapter includes an in-band tone generation unit including DTMF. and an in-band tone generation control unit that controls the in-band tone generation unit.